![]() ![]() ![]() Eddy Swirling currents of air at variance with the main current. Operational references in forecast discussions typically refer to the ECMWF's medium-range numerical forecast model, which runs out to 10 days. ECMWF European Center for Medium-Range Weather Forecasts. ECMF European Center for Meteorology Forecast model. Echo Tops The height above ground of the center of the radar beam using the tilt, or scan, that contains the highest elevation where reflectivities greater than 18 dBZ can be detected. Echo Energy back scattered from a target (precipitation, clouds, etc.) and received by and displayed on a radar screen. EBND Eastbound EBS Emergency Broadcast System Eccentricity A dimensionless quantity describing the elliptical shape of a planet's orbit. Ebb Current The movement of a tidal current away form the coast or down an estuary. The easterly waves are primarily a summer phenomenon. However, tropical cyclone development is not required in order for these systems to produce significant amounts of rainfall. Easterly waves can develop into tropical cyclones. Easterly Wave A low level disturbance of tropical origins. Easterlies Any winds with components from the east. To Regional Headquarters, as well as the Office of Hydrology (OH). E-7, Flood Damage Report In hydrologic terms, a report to be completed anytime there is reported flood damage or loss of life as a direct result of flooding. Is sent to Regional Headquarters, the appropriate RFC, as well as the Office of Hydrology (OH). Included as well as other interesting non-flood events, such as water supply, ice jams and the occurrence of drought. If no flooding has occurred within the past month, a climatic summary of the past month can be If the flooding involved a forecast point, anĮ-3 must be filled out as well. Flood stage, flood crest and dates in whichįlooding occurred is covered within this report for each data point which was in flood. E-5, Monthly Report of River and Flood c In hydrologic terms, a monthly narrative report covering flooding which occurred over the past month. An E-3 report is sent to Regional Headquarters, the appropriate RFC, as well as the Office of Discussion of the flood event must also be included in the E-5, Monthly Report of E-3, Flood Stage Report In hydrologic terms, a form that a Service Hydrologist/ Hydrology Focal Point completes to document the dates in which forecast points are aboveįlood stage, as well as the crest dates and stages. Used to take the place of an E-19 in documenting any gage history, or information of any non-forecast point (i.e data point). An E-19a is to be completed anytime a significant change occurs at a forecast point. E-19a, Abridged Report on River Gage Sta In hydrologic terms, an abridged version of an E-19, an E-19a updates the E-19 as additional information, or changes occur at the station during the E-19, Report on River Gage Station In hydrologic terms, a report to be completed every 5 years providing a complete history of a river station and all gages that have been used for publicįorecasts since the establishment of the station. Press enter or select the go button to submit requestĮ East E REGION In solar-terrestrial terms, a daytime layer of the earth's ionosphere roughly between theĪltitudes of 85 and 140 km. Which is hopefully easier to work with than $(2)$.By city. Wikipedia gives the formula for the tidal heating $\dot$$ ![]()
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